.qbank{max-width:900px;margin:0 auto;padding:32px 20px 64px}.qbank__intro{color:var(--color-text-muted);margin:8px 0 28px;line-height:1.9}.qbank__series{justify-content:space-between;align-items:baseline;gap:12px;margin:36px 0 12px;display:flex}.qbank__series h2{margin:0;font-size:1.2rem}.qbank__series a{color:var(--color-primary);font-size:.85rem}.qbank__list{border:1px solid var(--color-border);border-radius:12px;margin:0;padding:0;list-style:none;overflow:hidden}.qbank__list li+li{border-top:1px solid var(--color-border)}.qbank__list a{color:var(--color-text);align-items:baseline;gap:12px;padding:12px 16px;text-decoration:none;transition:background .15s;display:flex}.qbank__list a:hover{background:var(--color-primary-tint)}.qbank__code{color:var(--color-text-muted);white-space:nowrap;direction:ltr;font-size:.75rem}.qpage{max-width:760px;margin:0 auto;padding:32px 20px 64px}.qpage__crumbs{color:var(--color-text-muted);margin-bottom:18px;font-size:.8rem}.qpage__crumbs a{color:var(--color-text-muted)}.qpage__title{margin:0 0 18px;font-size:1.35rem;line-height:1.8}.qpage__media{border:1px solid var(--color-border);border-radius:14px;margin-bottom:20px;overflow:hidden}.qpage__media img{width:100%;height:auto;display:block}.qpage__audio{width:100%;margin-bottom:20px}.qpage__hint{color:var(--color-text-muted);margin:0 0 10px;font-size:.85rem}.qpage__options{gap:10px;margin:0 0 24px;padding:0;list-style:none;display:grid}.qpage__option{border:1px solid var(--color-border);background:var(--color-surface);border-radius:12px;align-items:baseline;gap:12px;padding:13px 16px;line-height:1.7;display:flex}.qpage__option--correct{border-color:var(--color-success);background:var(--color-success-tint)}.qpage__key{color:var(--color-primary);text-align:center;min-width:1.4em;font-weight:700}.qpage__reveal-btn{background:var(--color-primary);color:#fff;cursor:pointer;border:0;border-radius:12px;padding:12px 28px;font-family:inherit;font-size:.95rem;font-weight:700;display:inline-block}.qpage__reveal-btn:disabled{opacity:.6;cursor:wait}.qpage__explanation{background:var(--color-primary-tint);border:1px solid var(--color-border);border-radius:12px;margin-top:18px;padding:16px 18px;line-height:1.9}.qpage__explanation h2{margin:0 0 8px;font-size:1rem}.qpage__nav{border-top:1px solid var(--color-border);justify-content:space-between;gap:12px;margin-top:34px;padding-top:20px;display:flex}.qpage__nav a{color:var(--color-primary);font-size:.9rem}.qpage__cta{background:var(--color-primary-tint);border-radius:14px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:26px;padding:18px 20px;display:flex}.qpage__cta a{background:var(--color-primary);color:#fff;border-radius:10px;padding:10px 22px;font-size:.9rem;font-weight:700;text-decoration:none;display:inline-block}